Grain-car door.



Patented Aug. 6, l90l.

W. H. DANIELS. GRAIN CAR DOOR.

(Application led Feb. 20. 1901.)

(No Model.)

UNITED STATES PATENT OFFICE.

VILLIAINI H. DANIELS, OF DULUTH, MINNESOTA.

GRAIN-CAR DOOR.

SPECIFICATION forming' part of Letters Patent No. 680,132, dated August 6, 1.901.

ApplicationIuearetrmyro,190i. seria No. 48,180. mamans To all whom t nuty concern,.-

Beit known that I, WILLIAM H. DANIELs, a citizen of the United States, residing at Duluth, in the county of St. Louis. and State of v same being shown in dotted lines.

Minnesota, have invented certain new and useful Improvements in Grain-Car Doors; and I do hereby declare the following to be a full,

clear, and exact description of the invention,`

operating the same, whereby the parts areV prevented from breaking and relieved from liability of strain.

Another object of this invention is to provide a car-door which shall operate freely,

shall prevent anyloss of grain from leakage, and shall permit the removal of the grain from the car with a minimum of waste.

With these objects in view it consists of a vertically-sliding section operating within a horizontally movable door, whereby upon raising the vertically-moving section to its uppermost position grain may-escape beneath the main door and relieve the pressure upon the same.

It also consists of a main door, a supplemental door moving within the Inain door, andahinged door-sill adapted to bear against the supplemental door when in its lowered position and to assume ahorizontal position, whereby the grain may be guided to a receptacle outside the car when said supplemental door is raised.

It also has other objects in view; and it consists of certain other novel constructions, combinations, and arrangements of parts, as will be hereinafter more fully described and claimed.

In the accompanying drawings, Figure 1 represents a View in side elevation of a portion of a car carrying a door provided with the features of my invention, parts of the Fig. 2 is a vertical section on line a: a; of Fig. l looking toward that end of the car to which the main door is slid when opened. Fig. 3 is a horizontal section on line y y of Fig. l, and Fig. 4 is a detail view of the hinged sill or threshold. Fig. 5 is a detail cross-sectional view taken transversely of the hinged sill.

Referring to the drawings by numerals, l indicates the main car-door, ofless vertical depth and height than the doorway and provided with a groove, as at 2, the ends of which grooves are inwardly beveled, as at 3 3. Fitting Within said groove 2 is a supplementary door 4, provided with beveled ends, as at 5, whereby said supplemental door can not beremovedfrom engagementwithin said main door by lateral pressure. The door t is of a thickness to correspond to the depth of the groove 2 and when in position will have its outer face on the same plane with the outer face of the main door l. Any form of flanges, rails, or other suitable supports, as 6 6, with or without roller-bearings, may be provided within the car and secured to the sides thereof for supporting and guiding the main door lin its horizontal movement, and an interior casing, as 7, is provided for inclosing said door l, whereby grain is prevented from collecting about said door, the said casingentirely inclosing said door when in its farthest-open position. A stop, as 8, (seen in dotted lines in Fig. 1,) is provided for receiving the end of the door l, and a similar casing is there provided to. casing 7 for inclosing the end of the door. Any form of hasp orvother locking means, as 9, is provided on the supplemental door 4: for securing the same to the floor of the car when in its lowered position.

Avpivoted or hinged sill, as 10, is secured to the floor of thecar beneath the main door l. This sill is hinged in any suitable manner, but preferably, as shown in Fig. 4L at 1l 1l, by lugs or integral pintles adapted to pass beneath staples driven into the car-Iioor at the opposite sides of the doorway or by any other suitable securing means.

The operation and advantages of my construction Will be obvious from the foregoing description. The car being loaded with grain, the main, door l will be in its closed position, the supplementary door lowered and locked to the floor, and when in such position is of ICO sufficient width to extend partially into the groove 2 and be securely held by its beveled ends 5 5, whereby the lateral pressure ofthe contained grain will not strain or break the same. Said supplemental door also extends a short distance beyond the uprghts of the car-door on either side, as shown in Fig. 1 at 12 12 in dotted lines, thereby making it utterly impossible to dislodge said door by internal pressure. The parts being in the position just described, with the pivoted sill 10 bearing against the supplemental door, as best seen in Fig. 2, all that is necessary to open the door for unloading is to raise the door 4: to its uppermost position, whereby the pivoted sill 10 will be freed from support and permitted to restin a horizontal position and extend beyond the outer edge of the door, thereby guiding the grain into a receivingreceptacle. To facilitate the tlow of the grain, I prefer to bevel the edge of sill 10, as at 13, which abolishes any engaging edges which might tend to retain portions of the grain being unloaded. After enough of the grain has flowed from the car to relieve the pressure against the main door the same may be readily and easily slid horizontally upon tracks 6 6 to its open position. This entire operation may be performed from the outside of the car and without the assistance of heavy or cumbersome mechanism, and the car may be easily loaded by passing grain over the door when the same is closed.

My invention is simple of construction and yet durable and almost incapable of getting out of order and possesses a great advantage in that grain cannot get between and clog thev working parts.

Although I have described in detail one embodiment of my invention, I do not desire to he understood as limiting myself to the exact details as described, but shall feel at liberty to vary the size, shape, and minor details of construction of myimproved car-door.

Any desired form of handles (not shown) may be applied to the main and supplemental doors for operating the same. I also prefer to provide rollers on said lower flange or rail of the door-sheath as antifriction-supports for said door.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A grain-car door, comprising in its construction a main body portion movable longitudinally and provided with a groove formed within its cross-sectional area, said groove being arranged with beveled end portions, a supplemental section adapted to lit within said groove and to move vertically therein,

whereby when the said supplemental section is entirely within the groove the outer contour of the said door will be of the same size from end to end and the door can be Aeasily moved back and forth in its guides, and guiding means for'receiving the said main' body portion and holding it at a proper distance above the car-licor, which distance will be less than the supplemental section, whereby said section will be held against lateral pressure when in its lowered position, substantially as described. v

2. A grain-car door, comprising in its construction a horizontally-movable section, a vertically-movable section carried by said horizontally-movable section, said verticallymovable section being of a length greater than the width of the doorway whereby 4said last-mentioned section is adapted to be supported by the doorway-uprights against lateral pressure, and a casing adapted to inclose said sections when opened to their fullest extent, said horizontally-movableI section being adapted to be moved longitudinally into said casing, whereby the possibility of grain clogging the parts is obviated, substantially as described.

3. A car-door, comprising in its construction a main section, a supplemental section movable. vertically within the same, a ,hinged sill, pivoted to the car-floor and adapted to bear against said supplemental section and be' supported inl a vertical position thereby when said supplemental section is in its lowered position, and means for locking said supplemental section in said lowered position, substantially as described.

4. A grain-car door, comprising in its construction a main section, a supplemental section carried by said main section, a casing adapted to inclose said main and supplemental sections when said supplemental sec tion is at the highest point of its vertical movement and said main section has been slid longitudinally to the farthest point of its longitudinal movement, and means for supporting the outer end of said main section when in a closed position, substantially as described.

5. A grain-car door, comprising in its construction a main section, a supplemental section movable vertically within the same, a

v pivoted sill hinged to the floor of the car, said sill being beveled at its longitudinal'corners and adapted to bear against said supplemental section and be supported in a vertical position thereby when said supplemental section is in its lowered position, whereby said p sill is adapted to assume a horizontal position upon the supplemental section being raised,

thereby permitting the ready and unretarded WILLIAM H. DANIELS.

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